{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xca3055ec5f16b1b25173e6976bede86c2cf1119537bc291f196d815fb0230a00",
    "signature": "0x8f2ca34b8ea37b5589442053f7a3d451c17884f5d8e3e4788a487659829d5a10348c63dda6105ce6887ca0aa8f3c8d112da88374e3c2dcf67a476e37b33ebca21c",
    "signer": "0x9c4772EDa7Ba94E7E1a35ab79e3b819DB9fE85dD",
    "userId": "125075197"
  }
}